Wireless transmission of sonorous vibrations.



electro magnet ll.

` also varied, and as the steadiness of this current on PATENT 'os-uros.

.HENRY A. irccinr'r', ons-ix rnANciSco, CA L IFORNIA, ADMINISTRATOR orI-RANciS JOSEPH MCCARTY, DECEASED, AsSIGNon 'ro MCCARTY WIRELESSTELEPHONE co., or SAN Fnac'- cisco, clitnfonrni, .-i-conronifriou, orcamroinui.

' WIRELESS TBANSMISSIGN ,F SONQROUB VIBBATIONS.

No. senses. y'

` Bpecication of Letters Patent. Application iiled September 20,1906.Serial No. 835,396.

Patsntod'ct. 8, 190?.

To all 'u ho'my 'it may concern;

Be it known that Fn'ANcrs JOSEPH McCAu'rY, deceased, ormerlya citizen ofthe United States, residinf,r in the city and county oi San Francisco,State of,

the following is a specification. L

This' inventionrelates to an apparatus by' which sonorous vibrations betransmitted without the i aid of wires or other mechanicalintermediateconnections between the stations.

It consists in the combination of devices, and in details oiconstruction which will be more fully explained hy reference to theaccompanying drawings, in whichthe figure is a diagrammatic viewillustrating the in vention.

In this invention an induction coil. is employed having a secondarywinding A, and two primary windings 2 and 3. manner to the two sides o aspark gap 4.

5 is a suitable source oi electrical energy,.and one of the primarycoils 2 is put in series with this source of electrical energy, and.Athe 'current while flowing through this primary, is continually' variedby an'in terrupter 'as indicated at `6. The other primary 3 is connectedin series -with the same source oi electrical energy, in such a mannerthat the current`through this primary coil is nia-de to flow in theopposite direction io the previously described current in the primary 2.

An arc light 7 is introduced in series in the primary 3, and the currentflowing through this primary in series with the arc light being acontinuous one, gener'ai-es an unyaried magnetic ield which, owing toits steailiness, neutralizes the variations of th'e magnetic field of.the primary 2 which are caused by the interrupter- G; and consequentlyno discharge takes place .the ciment in the circuit il, which is inseries with thel arc light, `is effected by means oi a telephonetransmitter 9 which is connected through batteries 10 to an This magnetis energized by the impulses created by the voice aci-ing through thedis.- l'ilnngin of the transmitter, and the magnet is placed in .closeproximity to the arc light. The lines oi iorce thus generated throughthe magnet influence the'arc so that the current flowing through thecircuit 3 andthe arc. are varied in unison with the variations inducedthrough the transmitter and its connections. The primary 3, which is inseries with the'arc light, is now The secondary coil is connected intheusual A 1. In apparatus f'r transmitting sonorous vlbretlons,' primarycoils, a secondary coll with Vconnected spark gap device. a source ofelectrical enecgy with which the primaries are connected, and menuswhereby the passing electricsl currents are independently varied. p

2. VIn an apparatus for transmitting sonorous vilnations, n pluralityoi.' primaryco'l'ls, asecondary coll und spark gap device, u source ofelectrical energy with which the circuit otvone primary4 and meanstohlndependently vary the current owlng through the otherprhnary.

3. In nh apparatus tor trnnumltting sonorous vibrations, a 'pluniilltyotprimary colis, s. secondary coll and spark gap deylceia source ofelectrical energy with which the primari` s mieconnscted, an interrupterdisposed in the circuit X one prim ry, an are light located in thecircuit of the secondi primary' and' means whereby the lmpulses crntedAby souorons vibrations set to independently.

vary the vibrations ln the second prlmaryclrcuit.

4. In an apparatus for transmitting sonorous vibrations,

n pluralityffof primary colis, a secondary coil' energizedtherebyandfhaving a spark. gap device, o. source of electrlcnl energywith,V which the primaries are connected, anV "nnterrupter disposed .inthe circuit of one primary, an are Hight located lln/the circuit ofthesecond'prlmary, a mug' net`ohtlguous to the arc, a telephone transmitterund elec trically energized connection between the transmitter and themagnet. y

5. In an 'apparatus for the transmission of sonorous vibrations, a.plurality of primary coils, a secondary coil with spark gap device andenergized by the primary coils, a source of electrical energy,connections whereby an electrical current ilows in opposite directionsthrough the one primary, an are light in the circuit of the other pri-Vprimaries are connected, aninterrupter disposed ln-the v mary, atelephone transmltterand an electrically euerglzed magnet with which thetransmitter is connected, said muguet being located in close proximitywith the arc light.

6. In an ynppamtus for transmitting sonni-ous vibrations, a pluralityoi' prlnmry coils, a source of electrical energy from which currents nretransmitted through the coils in opposlie'dircctlons, a Secondary coilhaving s. spark gap device und energized by the two primaries, aninteri-opter ln one primary circuit, an nrc llght'locnted in the otherprimary clrcult, suid circuit normally neutralizing the magnetic fieldof the interrupted circuit. v

7. In un apparatus for transmitting sonorous vibrations, n source ofelectrical energy, two 'contiguous primaryv coils in whichelectrical-currents 'flow' in opposite directions, und a secondary-colland spark gap device energized by said primaries, nn interruptordisposed lu the circuit o i.

loo

v :i scurre 0l electrical energy. two contiguous pr une prinfary, aridcontrolled means for :trying the currhxit uli illu Uthcr primary.

Si In im apparatus for Izrzlusuiitrinf soxmruus vihrnluux, lary coils iuwhich eierlriraii ruireuts flow in oppusitu ilircclinus, :L sccouilurycoil und spurlc gzip device mer facil h r wird primaries, amiui'crrupler .disposed iu the circuit cl' mie primary hurl vcczillycontrolled menus for varying the uur rvii of the other primary.

iL ln an apparatus fm' transmitting scuurous viiirllrious,

:i sourcc of electrical energy, two contiguoug primary coilsfl iu whichelectrical currents Flow iu opposite directions, im iufluctioii coilwith a spzirk gap, said coil heim; energized hy the prlmurics, nuinterruptcr disposed in one 01 the primary circuits, mi :1re lightwithin the other primary cirruil, 'an elrl'rl) magnet located contiguous'to the are. u b'flltcry uur; :i lclephom; 'transmitter iucircuit withtlm clcclro-umguel. A, A

10. In au apparatus for trupsxxittii g scuurous vibrations, :t source ofelectrical `@nei-cw, an niet riczilly eucr gixcd primary coll, havlng auincrrupcr dispuscrl in its circuit, :i sommi primary cuil cmilig'uous tothe fitter, und t( un electric curi-Qui. ms-sing through il; iu oppositen from hfit m' the first primary, whereby thcy @amari i J2A Iu :tu:tplmrutus for transmitting' sui'wrnus vihmtions. :i secondary coil withspurl: gzip device in i ruil.,

:in electrically energized prima mil :lud interi' means tor neutralizingthe mguciic. livlil uf Suid coil. u telephone truusmittciund. rumicciunswhcrrhy thc spark gap discharges will be vuri'cd hy vuriil lniptihscsthrough the transmitter` In t tiuiony whcrro' I, liiiuuf A. lluCiirm,mhulnlstraitor @Lilie @sialic uf Francis Joseph McCarty, ilvcmisc;

have hcrcuzxw srly my hund iu thc prrscucc o 'tiro .suiiscilbini;lwilncssess y HENRY .Vl MC-(IAlt'lY,

im 'nrw/1.

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